The Eazi-Breed CIDR is used to improve the timing and efficiency of cow and heifer breeding programs. Each Eazi-Breed CIDR Cattle Insert contains 1.38 grams of progesterone. Inserts are administered intravaginally, one per animal, releasing progesterone during the seven-day treatment period. For synchronization of estrus in beef cows, replacement beef and dairy heifers, an injection of Lutalyse must be given one day before insert removal; for lactating dairy cow synchronization administer Lutalyse when insert is removed. Removal of the insert on treatment day seven results in a drop in plasma progesterone, triggering estrus within three days. (Lutalyse is a prescription drug.) Applicator sold separately.

A friction-activated patch that is easy to apply, highly visible, extremely accurate and works in all weather conditions. Just apply the patch to the tailhead prior to standing heat. Then when the cow is mounted, the scratch-off surface is rubbed off exposing the "color signal". Self adhesive, requires no messy glues.

Same great heat detectors as the original, but now much more convenient to use. No more messy adhesives needed. Box contains 40 detectors with peel and stick back and complete instructions. After opening package, store unused patches in a sealed glass jar.